Phenolic plastic stirring device with automatic feeding function

Abstract

The utility model relates to a phenolic plastic stirring device with an automatic feeding function, which comprises a reaction kettle, a stirring cavity is formed in the reaction kettle, and a stirring mechanism is mounted in the stirring cavity; a discharging pipe communicated with the stirring cavity is fixedly arranged on the lower side of the reaction kettle; a feeding pipe communicated with the stirring cavity is fixedly arranged on the upper side of the reaction kettle, and a control assembly is arranged in the feeding pipe; a premixing mechanism is arranged on the upper side of the feeding pipe, a rotating air cylinder drives a rotating shaft to rotate, so that a control plate can swing front and back, a gap can be formed between the outer edge of the control plate and the inner wall of the feeding pipe along with swinging of the control plate, and the size of the gap changes along with the inclination angle of the control plate; therefore, the feeding speed of the raw materials is controlled by controlling the size of the gap, so that the raw materials in the reaction kettle can react to generate required products, and the product quality is ensured.

Description

Technical Field

[0001] This utility model relates to phenolic plastics, and in particular to a phenolic plastic mixing device with an automatic feeding function. Background Technology

[0002] Phenolic plastics are thermosetting plastics based on phenolic resin. They have good mechanical properties, excellent electrical insulation, excellent heat resistance and stable chemical properties, and are widely used in the manufacture of various electrical insulation parts and mechanical parts.

[0003] In the production and processing of phenolic plastics, various raw materials need to be stirred, mixed, and fully reacted. In order to promote uniform reaction, the raw materials need to be premixed before being added to the reaction vessel. Moreover, the requirements for the amount and time of addition of various raw materials vary for phenolic plastics produced by different processes. Existing stirring equipment can accurately control the addition time of special raw materials, but lacks the ability to control the amount of raw materials added. Therefore, how to accurately control the amount of different raw materials added to ensure the product quality of phenolic plastics has become an urgent problem to be solved. Utility Model Content

[0004] This invention proposes a phenolic plastic stirring device with automatic feeding function, which solves the above-mentioned problems existing in the use of the prior art.

[0005] The technical solution of this utility model is achieved as follows: a phenolic plastic stirring device with automatic feeding function includes a reaction vessel, a stirring chamber is provided inside the reaction vessel, and a stirring mechanism is installed inside the stirring chamber;

[0006] A discharge pipe connected to the stirring chamber is fixedly provided on the lower side of the reactor;

[0007] The upper side of the reactor is fixedly provided with a feed pipe that communicates with the stirring chamber, and a control component is provided inside the feed pipe;

[0008] A premixing mechanism is provided on the upper side of the feed pipe.

[0009] A further feature of this invention is that the control component includes a rotary cylinder, which is mounted on the reaction vessel.

[0010] A control plate that swings back and forth is rotatably connected inside the feed pipe via a rotating shaft, and the outer edge of the control plate abuts against the inner wall of the feed pipe.

[0011] The output shaft end of the rotary cylinder is fixedly connected to the rotating shaft.

[0012] A further feature of this invention is that the rotating cylinder has a self-locking function.

[0013] A further feature of this invention is that the premixing mechanism includes a feeding branch pipe, the number of which is at least two, and the feeding branch pipes are all fixedly connected to the upper side of the feed pipe.

[0014] A blower is installed on the upper side of the reactor. An air inlet pipe is fixedly installed at the air outlet of the blower. The end of the air inlet pipe that is not connected to the blower is fixedly connected to the intersection of the two feeding branch pipes.

[0015] A further feature of this invention is that an exhaust pipe connected to the stirring chamber is provided on the reaction vessel, a negative pressure pump is installed on the exhaust pipe, and a waste gas treatment device is connected to the end of the exhaust pipe.

[0016] A further feature of this invention is that the stirring mechanism includes a stirring rod, which is rotatably connected to the stirring chamber, and a plurality of stirring paddles are installed on the circumferential sidewall of the stirring rod.

[0017] The reactor is equipped with a servo motor for driving the stirring rod.

[0018] A further feature of this invention is that a heat insulation layer is provided on the outer surface of the reactor.

[0019] In summary, the beneficial effects of this utility model are as follows:

[0020] The rotating cylinder drives the rotating shaft to rotate, which allows the control plate to swing back and forth. As the control plate swings, a gap appears between the outer edge of the control plate and the inner wall of the feed pipe. The size of the gap changes with the tilt angle of the control plate. By controlling the size of the gap, the feeding speed of the raw materials can be controlled to ensure that the raw materials in the reactor can react to produce the required product and ensure product quality.

[0021] The rotary cylinder has a self-locking function, which allows the control plate to remain unchanged after swinging back and forth for a certain range, thus preventing the control plate from shaking due to the pressure of raw materials and making it impossible to accurately control the feeding speed of raw materials. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a cross-sectional view of the present invention;

[0025] Figure 3 for Figure 2 A magnified view of part A;

[0026] Figure 4 for Figure 1 A schematic diagram of the structure from another perspective.

[0027] The following are the labels in the diagram: 11. Reactor; 12. Stirring chamber; 13. Discharge pipe; 14. Feed pipe; 15. Rotary cylinder; 16. Control panel; 17. Feeding branch pipe; 18. Fan; 19. Air inlet pipe; 20. Exhaust pipe; 21. Negative pressure pump; 22. Stirring rod; 23. Stirring paddle; 24. Servo motor; 25. Rotary shaft. Detailed Implementation

[0028] The following will refer to the appendix in the embodiments of this utility model. Figure 1-4 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] Example:

[0030] like Figures 1 to 4 As shown, a phenolic plastic stirring device with automatic feeding function includes a reaction vessel 11, and the outer surface of the reaction vessel 11 is provided with a heat insulation layer to prevent technicians from being burned by the exothermic polycondensation reaction during operation. A stirring chamber 12 is formed inside the reaction vessel 11. A feed pipe 14 connected to the stirring chamber 12 is fixedly installed on the upper side of the reaction vessel 11. At least two feeding branch pipes 17 are fixedly connected to the upper side of the feed pipe 14, and different raw materials are fed into the reaction vessel through the feeding branch pipes 17. Inside the feed pipe 14, a blower 18 is installed on the upper side of the reactor 11. An air inlet pipe 19 is fixedly installed at the air outlet of the blower 18. One end of the air inlet pipe 19, which is not connected to the blower 18, is fixedly connected to the intersection of multiple feeding branch pipes 17. When different raw materials enter the feed pipe 14, the blower 18 delivers airflow from top to bottom into the feed pipe 14 through the air inlet pipe 19. The raw materials are mixed evenly under the disturbance of the airflow, thereby achieving the purpose of premixing the raw materials.

[0031] Furthermore, a control plate 16 is rotatably connected to the feed pipe 14 via a rotating shaft 25. A rotating cylinder 15 is installed on the reactor 11 to drive the rotating shaft 25 to rotate, thereby causing the control plate 16 to swing back and forth. As the tilt angle of the control plate 16 changes, a gap appears between the outer edge of the control plate 16 and the inner wall of the feed pipe 14. The premixed material falls through the gap and is fed into the stirring chamber 12. The size of the gap changes with the tilt angle of the control plate 16 to control the feeding speed of the raw materials. When the equipment is powered off and no stirring operation is performed, the fan 18 stops working and no longer supplies airflow into the feed pipe 14. The control plate 16 is in a parallel state, and the outer edge of the control plate 16 abuts against the inner wall of the feed pipe 14, thereby completely sealing the lower side of the feed pipe 14 and preventing the raw materials remaining on the upper side of the feed pipe 14 from being fed into the stirring chamber 12.

[0032] It should be noted that during the mixing operation of the phenolic plastic mixing device with automatic feeding function, the control plate 16 is no longer in a parallel state. There will be a gap between the outer edge of the control plate 16 and the inner wall of the feed pipe 14 for the raw material to pass through. When the control plate 16 rotates 90 degrees, the gap reaches its maximum. At this time, the raw material feeding speed is the fastest and the feeding amount is the largest. Through the above structure, the phenolic plastic mixing device with automatic feeding function can control the feeding speed of raw materials according to different products, thereby ensuring product quality.

[0033] Furthermore, the rotating shaft 25 has a self-locking function, which allows the control plate 16 to remain unchanged after swinging back and forth to a certain extent, thus preventing the control plate 16 from shaking due to the pressing of raw materials, which would lead to an inability to accurately control the feeding speed of raw materials.

[0034] A stirring rod 22 is rotatably connected inside the stirring chamber 12. Several stirring paddles 23 are installed on the circumferential side wall of the stirring rod 22. A servo motor 24 for driving the stirring rod 22 is installed on the reactor 11. The raw material is put into the stirring chamber 12 for heating. The stirring paddles 23 drive the stirring paddles 23 to rotate, thereby stirring the raw material to ensure that the raw material in the stirring chamber 12 is heated evenly and fully mixed. A discharge pipe 13 connected to the stirring chamber 12 is fixedly provided on the lower side of the reactor 11. The heated and evenly mixed paste raw material enters the extrusion device (not shown in the figure) through the discharge pipe 13 for extrusion injection molding.

[0035] In addition, the reactor 11 is connected to an exhaust pipe 20 that communicates with the stirring chamber 12. A negative pressure pump 21 is installed on the exhaust pipe 20, and the end of the exhaust pipe 20 is connected to a waste gas treatment device (not shown in the figure). Toxic gases may be generated during the heating and stirring of the raw materials. These toxic gases are drawn into the exhaust pipe 20 through the negative pressure pump 21 and enter the waste gas treatment device. After being purified by waste gas treatment, they are discharged into the atmosphere to avoid environmental pollution.

[0036] At the same time, the airflow blown into the feed pipe 14 by the air inlet pipe 19 is also discharged from the stirring chamber 12 through the exhaust pipe 20 to ensure the pressure balance inside and outside the stirring chamber 12, avoid excessive pressure inside the stirring chamber 12 leading to an explosion, and thus ensure the safety of technicians.

[0037] It should be noted that the functions to be achieved by the exhaust gas treatment device in this embodiment are supported by a large number of mature technologies. The essence of this utility model is to optimize and combine the existing hardware machine connection methods for specific application scenarios in order to adapt to the problem of how to treat harmful gases (without changing the internal structure of the exhaust gas treatment device).

[0038] It should also be noted that the terms used in this utility model, such as "front", "rear", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0039] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A phenolic plastic stirring device with automatic feeding function, comprising a reaction vessel (11), characterized in that: The reactor (11) is provided with a stirring chamber (12), and a stirring mechanism is installed in the stirring chamber (12); The lower side of the reactor (11) is fixed with a discharge pipe (13) that communicates with the stirring chamber (12). The upper side of the reactor (11) is fixedly provided with a feed pipe (14) that communicates with the stirring chamber (12), and a control component is provided inside the feed pipe (14); A premixing mechanism is provided on the upper side of the feed pipe (14).

2. The phenolic plastic mixing device with automatic feeding function according to claim 1, characterized in that: The control assembly includes a rotary cylinder (15) which is mounted on the reactor (11); The feed pipe (14) is rotatably connected to a control plate (16) that swings back and forth via a rotating shaft (25), and the outer edge of the control plate (16) abuts against the inner wall of the feed pipe (14). The output shaft end of the rotary cylinder (15) is fixedly connected to the rotating shaft (25).

3. The phenolic plastic mixing device with automatic feeding function according to claim 2, characterized in that: The rotating cylinder (15) has a self-locking function.

4. A phenolic plastic mixing device with automatic feeding function according to claim 1, characterized in that: The premixing mechanism includes a feeding branch pipe (17), and the number of the feeding branch pipe (17) is at least two. The feeding branch pipe (17) is fixedly connected to the upper side of the feed pipe (14). A blower (18) is installed on the upper side of the reactor (11). An air inlet pipe (19) is fixedly provided at the air outlet of the blower (18). One end of the air inlet pipe (19) that is not connected to the blower (18) is fixedly connected to the intersection of the two feeding branch pipes (17).

5. A phenolic plastic mixing device with automatic feeding function according to claim 4, characterized in that: The reactor (11) is connected to an exhaust pipe (20) that communicates with the stirring chamber (12). A negative pressure pump (21) is installed on the exhaust pipe (20), and a waste gas treatment device is connected to the end of the exhaust pipe (20).

6. A phenolic plastic mixing device with automatic feeding function according to claim 1, characterized in that: The stirring mechanism includes a stirring rod (22), which is rotatably connected to the stirring chamber (12), and a plurality of stirring paddles (23) are installed on the circumferential sidewall of the stirring rod (22). The reactor (11) is equipped with a servo motor (24) for driving the stirring rod (22).

7. A phenolic plastic mixing device with automatic feeding function according to claim 1, characterized in that: The outer surface of the reactor (11) is provided with a heat insulation layer.

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